WO2010015519A1

WO2010015519A1 - First opening safety

Info

Publication number: WO2010015519A1
Application number: PCT/EP2009/059499
Authority: WO
Inventors: Katja Quedenbaum; Karsten Wolf
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2008-08-07
Filing date: 2009-07-23
Publication date: 2010-02-11
Also published as: DE102008036718A1; EP2307298B1; ATE556969T1; EP2307298A1

Abstract

The invention relates to a first opening safety (101) for mounting onto adhesive or correction rollers (201) for applying an adhesive or corrective film (206) onto a substrate (301) by way of an application device (203), wherein the first opening safety (101) extends at least partially over the application device (203) in the installed state and is disposed at least partially between the adhesive or correction film (206) and the substrate (301) in order to prevent application of the adhesive or correction film (206) onto the substrate (301) by way of the application device (203), and wherein the first opening safety (101) can be released from the adhesive or correction roller (201) for first time use of the adhesive or correction roller (101) so that the first opening safety (101) can be removed prior to the first time transfer of the adhesive or correction film (206) onto the substrate (301) by way of the application device (203). In this way, wrap-around packaging can be conserved and trial usage by users in sales areas can be eliminated.

Description

Erstöffnungssicherung

The invention relates to a first opening assurance for adhesive or correction roller for applying a correction or adhesive film.

Correction or adhesive scooters are usually offered to the end user in an outer packaging in the form of a blister or a folding box for sale. This serves to protect the scooters in the sales room. A major disadvantage of the outer packaging are the high production and material costs. Another disadvantage is the accumulated packaging waste. However, it is also disadvantageous to offer the scooters in unpackaged condition, for example in displays or in baskets. Here, the necessary for the order of the correction or adhesive film components or the film itself may be damaged, so that a use of scooters is impossible. Another disadvantage of unpacked scooters is the possibility for the customer to test the scooters. The testing of the scooter does not result in most cases in the purchase, so that the next customer used scooters are offered in the dosage areas. The purchase of already used goods is not desired in most cases, so that there is no purchase. This leads to customer dissatisfaction and sales losses for the seller.

The object of the invention is therefore to provide a way to prevent the use of scooters in the sales room and indicates to a customer that he is acquiring a new device.

This object is solved by the features of claim 1.

The advantageous embodiments of the invention are specified by the subclaims.

The basic idea of the invention is to use an opening-opening safeguard, which is provided for mounting on adhesive or correction rollers for applying an adhesive or correction film to a substrate via an applicator, wherein the first-opening safety device in the installed state extends at least in places over the applicator device and at least is partially disposed between the correction or adhesive film and the substrate to prevent application of the film on the applicator on the substrate and wherein the Erstöffnungssicherung is removable from the adhesive or Korrechktoller for the first time use of the adhesive or correction roller to an order of the Film on the applicator to enable the substrate.

This system of opening protection and scooter offers many advantages. The opening opening safety device serves as a tamper-evident closure and guarantees a customer the purchase of a new and unused correction or adhesive roller, as long as the opening opening safety device is still mounted. The first opening safety device is mounted on the scooter in such a way that it is used for the first time of the scooter must be removed. Commercially available rollers generally contain a supply of correction or adhesive film, which can be transferred to the substrate via a preferably projecting application device with an application strip by means of a pressure action on the roller connected to a pulling movement. The application bar is preferably arranged orthogonal to the application direction of the film on the substrate and serves to press the film onto the substrate. Of course, other components, such as rollers or rounded areas are conceivable with which the film is transferred to the substrate. For safe avoidance of use of the scooter, the opening-safety device is arranged at least between the film to be dispensed in the area of the application strip and the substrate. In the above-mentioned avoidable use of a customer in the salesroom, the opening assurance prevents transmission of the film. Due to the position of the first opening security between the application strip or film and substrate, the scooter glides when used on the Erstöffnungssicherung and there is no film application to the substrate. A buyer is signaled by the offer of a scooter with a mounted opening protection thus the new and unused condition of the scooter. In addition, the first-opening protection over conventional outer packaging, such as blisters or cartons has the advantage that packaging costs can be saved and almost no packaging waste. Another advantage resulting from the omission of the outer packaging is the possibility for a potential buyer to see the offered roller unpacked and, for example, to hold or run a test without transferring a film, for example, the feel of the device or the location to try in the hand.

The Erstöffnungssicherung can be both part of a component, such as the housing or the applicator of the scooter. Since most of the components of commercially available scooters are made of plastic, it is also conceivable that the first-opening safeguard is molded onto or molded onto such a component during production. The first opening safety device is preferably separated for the first time use of the scooter of the latter by destroying the connection point or the injection seam between the opening safety device and the scooter component. Of course, the use of a first opening assurance in the form of a separate component is possible, which is connected to the scooter via a suitable positive, non-positive or cohesive connection, such as snap, clamp or adhesive connections.

For a secure connection between the first opening assurance and the scooter, it is also advantageous to provide a retaining means to ensure attachment of the opening protection on the scooter. About the restraint means the first opening safety device is connected to the scooter so that forces acting on the first opening safety forces are transmitted to the scooter without the first opening safety device separated from the scooter, that is retained. Thus, for example, a test use of the scooter in the shop by a customer is ensured, in which also a sliding of the scooter on the opening protection is possible to simulate a film order, without transferring film. The forces acting on the opening guard However, do not lead to disassembly of the opening opening assurance, since the latter are held by the retaining means on the scooter.

In order to ensure a separation of the first opening assurance of the scooter, for example, in the above-mentioned sample use without film application is of advantage to use a retaining means having a minimum retention force of 2 Newton for attachment to the scooter. This is a tensile force that must be absorbed by the retaining means of the opening protection to prevent separation from the scooter. Through the use of such a retaining means with a minimum retention force is guaranteed in any case that the customer does not disconnect the first opening assurance of the scooter during a designated run a scooter, for example by the mentioned test use. The separation is preferably carried out manually by the user before the first film application, by a tensile force exceeding the minimum retention force is acted on the Erstöffnungssicherung.

In order to ensure a manual separation of the first opening assurance by the user, it is furthermore advantageous to use a retaining means which has a maximum retention force of 20 Newtons for attachment to the adhesive or correction roller. By providing the restraint means with such a maximum restraint force ensures that the user can separate the same from the scooter by relatively light force on the Erstöffnungssicherung. A greater retention force, which is able to restrain the retaining means on the first opening safety device on the scooter, makes it more difficult for the user to separate the opening opening safety device from the scooter or, for example, make it impossible for older or particularly young users to disconnect.

In order to signal to the user that a scooter equipped with an inventive opening-safety device is new and unused, it is furthermore advantageous to design the first-opening safeguard as a one-way safety device. A re-assembly of the opening assurance after a separation from the scooter, for example, after a first-time use of the scooter can be excluded. A customer who intends to buy a scooter thus immediately recognizes that the scooter equipped with the opening protection is new and unused. For this purpose, for example, the use of connecting means is conceivable, which are destroyed in a separation, so that no firm connection between the first opening fuse and scooter after a first separation of both components can be made from each other.

Another advantage is the installation of the opening opening directly on the applicator of the scooter. As a rule, application devices are detached from the housing of the scooter and are often flexibly mounted. When mounting the first opening safety device on the housing itself, a sample use of the scooter with a concomitant pressurization of the scooter could lead to bending or pivoting of the first opening safety device with the application device when pivoting a flexible application device, which would possibly result in unintentional separation of the first opening safety device from the scooter , By mounting the Opening opening assurance on the applicator itself this is avoided. The force acting on the roller and on the application device during sample use acts directly on the opening opening safety device. If the force effect, for example, to a pivoting of the applicator, the opening assurance would be pivoted together with the applicator, so that a separation of the connection between the first opening safety device and roller can be excluded.

Another advantage is the provision of the first opening safety device with a gripping surface for disassembly of the roller to ensure transfer of the film to the substrate. The gripping surface provides the user with a means by which he can grip the opening-opening security particularly securely in order to remove the opening-opening safety device from the scooter. For example, the gripping surface may be tab shaped so that the user, by engaging the tab with one or more fingers, may remove the first opening securing device from the scooter for the first time use of the latter. It is also conceivable a strip-shaped form, so that the user holds the strip, for example, between the thumb and a finger in order to exert a tensile force for the removal of the first opening assurance on this. Of course, other suitable forms of Angrifffläche are conceivable. The attack surface can also have anti-slip properties to provide the user with a good attack opportunity. Preferably, the Angrifefläche protrudes from the outer contour of the scooter and / or is, for example, color coded, so that the user is clearly signaled the possibility of attack to remove the opening assurance of the scooter.

Another advantage of using an attack surface is the equipment of the same with an indicator element to give the user the direction of application for the removal of the opening opening assurance. Such a reference element can be printed, for example, on the Angrifffläche or be a separate sticker. It is also possible to design the gripping surface in the form of a reference element, for example an arrow-shaped, wherein the arrow is directed in the direction of the preferred direction of removal of the first opening fuse. The user is signaled by such a reference element in a simple way the direction of removal of the attack element, without having to take descriptions for example to help.

Another advantage is the use of at least one correction or adhesive roller with an inventive opening protection in a sales display. Preferably, a plurality of scooters are included in such a sales display. The sales display serves to present the scooters in wholesale and retail. There are many benefits to using first-touch-proof scooters in a sales display. In contrast to the familiar offer of scooters in blisters or folding cartons, the customer can be presented with a selection of scooters without outer packaging via this combination. The customer has direct insight into the goods and the view is not distorted by outer packaging such as blisters or folding cartons. Preferably, only small areas of the scooter are covered by the first opening closure, so that the customer can see all the details. These include in particular the type of scooter, whether it can be used for gluing, correcting or marking, the width of the film to be transferred, the color and shape of the housing or the outer dimensions of the scooter. The customer can be sure after a purchase decision to have purchased the right product. In addition, the customer sees when the scooters in the sales display on the basis of the presence of the opening inspection, whether a scooter is new and unused.

LIST OF REFERENCE NUMBERS

101 safeguarding of resources

102 holding teeth

103 section

104 first bending edge

105 second bending edge

106 stop surface

107 attack surface

108 reference element

201 correction roller

202 housing

203 application device

204 order bar

205 carrier tape

206 correction film

207 band guide cheeks

208 opening

209 paragraph

210 circulation area

301 substrate

401 users

501 sales display

Fz traction

FR retention force

The invention is explained in more detail below with reference to the drawings by way of example. Show

Figure 1 is a partially sectioned side view of a correction roller with a mounted inventive Erstöffnungssicherung

FIG. 2 shows a perspective view of the correction roller with the first opening securing device mounted

FIG. 3 shows a perspective view of the first opening safety device from FIG. 1

FIG. 4 shows a plan view of the underside of an application device of the correction roller of FIG. 1 with mounted first opening safety device

FIG. 5 shows a perspective view of the correction roller of FIG. 1 during the removal operation of the first opening safety device

FIG. 6 shows a perspective view of a sales display with a multiplicity of correction rollers with mounted first opening safety device from FIG. 1

A correction roller 201 shown in the figures is used to transfer a correction film 206 from a carrier tape 205 onto a substrate 301. In this case, the means detached from the carrier tape 205, such as, for example, the correction film 206 or a pigment composite, is transferred, for example, to a sheet of paper in order to cover the characters thereon with the correction film 206. Instead of the correction film 206, it is also possible to apply an adhesive film or a luminous color strip to the substrate 301 in order to provide it with adhesive for gluing or to mark or emphasize text passages located thereon. Instead of a correction film 206, a partial application of, for example, adhesive is also possible. In this case, the carrier tape 205 is preferably not provided areally with an adhesive film, but only partial sections of any size and shape. In this way, for example, adhesive can be saved. There are also other forms of scooters conceivable in which an order of any film is done without a carrier tape. In this case, after being transferred to the substrate 301, the film is torn, cut or otherwise separated from the roller.

FIG. 1 shows a partially cutaway side view of the correction roller 201 which serves to apply the correction film 206 from the carrier tape 205 to the substrate 301. The correction roller 201 is equipped with a first opening safety 101 according to the invention. The first opening safety device 201 of the system shown, consisting of the correction roller 201 and the first opening safety device 101, serves as a proof of originality and signals a new and unused correction roller 201 in the mounted state on the correction roller 201. For this purpose, the first opening safety device 101 is attached to the device Correction roller 201 mounts that it is disposed between the correction film 206 and the substrate 301 and thus prevents contact between correction film 206 and substrate 301. When a sample is used by a user of the correction roller 201 equipped with the first opening fuse 101, only the first opening safety device is provided 101 in contact with the substrate 301. Transmission of the correction film 206 is not possible. In order to be able to use the correction roller 201 as intended for a correction, the first opening safety device 101 is to be removed by the user from the correction roller 201.

The correction roller 201 has a housing 202. In the housing 202 a not shown rotatably mounted supply spool is provided. The supply reel serves to receive the carrier tape 205 coated with the correction film 206. In order to receive the carrier tape 205 after the transfer of the correction film 206 to the substrate 301, a non-illustrated rotatably mounted take-up reel is provided in the housing. The housing 202 is substantially closed except for an opening 208 and protects the inner supply of correction film 206 from external influences. From the opening 208 of the housing 202 protrudes an applicator 203 for transmitting the correction film 206 from the carrier tape 205 on the substrate 301 out. The carrier tape 205 coated with the correction film 206 is transferred from the supply reel through the opening 208 out of the housing 202 to the application device 203. The application device 203 has an application strip 204 for transferring the correction film 206 from the carrier tape 205 onto the substrate 301. This is arranged at the distal end of the application device 203 and serves to press the correction film 206 onto the substrate 301. Of course, a roll or another component suitable for a transmission of the correction film 206 is conceivable instead of an application strip 204. At the applicator 204 of the applicator 203, the carrier tape 205 freed from the correction film 206 is passed around on the substrate 301 after the film transfer and again passes through the opening 208 in the housing to be received by the take-up reel. In order to prevent slippage of the carrier tape 205 from the applicator 203, band guide cheeks 207 are provided on the applicator 203.

The first opening safety device 101 is mounted in the present exemplary embodiment on the applicator 203 of the correction roller 201 and protrudes with one end on the side of the correction roller 201 facing the substrate 301 in regions through the opening 208 into the housing 202. In the further course of the first opening safeguard 101 in the direction of the distal side of the application device 203, the opening opening 101 extends essentially parallel to the carrier tape 205 provided with correction film 206. In the area of the application strip 204, the opening opening device has a first bending edge 104 and encloses the application strip 204 and the distally projecting portion of the applicator 203. Following the first bending edge 104, the opening opening 101 again extends substantially parallel to the carrier tape 205 in the direction of the opening 208 of the housing and projects into this opening 208 in some areas. The region of the first opening securing 101 arranged within the housing 202 has a second bending edge 105. The Erstöffnungssicherung 101 is by means of the second bending edge 105 back out of the opening 208 led out of the housing 202 and is located with a stop surface 106 on a shoulder 209 on the housing 202 of the correction roller 201 in the region of the opening 208 at. Subsequent to the abutment surface 106, the first opening safety device 101 has a protruding engagement surface 107 by means of which the user can remove the first opening safety device 101 from the correction roller 201 for receiving the transfer of the correction film 206 onto the substrate 301.

Of course, it is alternatively possible the Erstöffnungssicherung 101 in other ways with the applicator 203 or directly to the housing 202 form-fitting, non-positive or materially, such as by gluing, molding or molding to connect. Also conceivable is merely a mounting of a first-opening fuse 101 in the region of the application device 203 facing the substrate 301 between the correction film 206 and the substrate 301 without the use of bending edges 104, 105.

FIG. 2 shows a perspective view of the correction roller 201 from FIG. 1 with the first opening securing device 101 mounted. The first opening securing device 101 surrounding the application device 203 is mounted on the correction roller 201 such that the correction tape coated carrier tape and the carrier tape without correction film between the applicator 203 and the first opening fuse 101 is arranged. In addition, a contact possibility of the application bar 204 in the region of the deflected carrier tape by the order bar 204 upstream first bending edge 104 is prevented. In this way, the carrier tape, the coated with correction film carrier tape and the application bar 204 is optimally protected from external influences to avoid damage. Furthermore, improper use of the correction roller 201 is prevented, for example, by sample use of the correction roller 201, since the correction roller 201 only slides over the initial opening securing device 101 or the first bending edge 104 upstream of the application strip 204 in the use state. In the present exemplary embodiment, the first opening safety device 101 is arranged between the band guide cheeks 207, whereby the position of the first opening safety device 101 is secured to the correction roller 201 and pivoting of the two components relative to one another is avoided.

FIG. 3 shows a perspective view of an opening-opening safety device 101 according to the invention. In the present exemplary embodiment, the opening-opening safety device 101 consists of a sheet-like plastic material and is preferably folded along fold lines introduced into the material during assembly with a roller so that the bending edges 104, 105 are formed. These bending edges 104, 105 ensure optimum adaptation of the opening-opening protection to any application devices or correction rollers. The first opening safeguard 101 can be adapted to different shapes by means of the outer contour of the application device or the corrector roller corresponding angle at the bending edges 104, 105. At the side facing the correction tape provided with the carrier tape, the first opening safety device 101 has a cutout 103. This cutout 103 prevents adhesion of the correction film to the first-opening-protection 101. The contact surface of the correction film at the opening-opening-protection 101 is provided by the equipment prevented with a cutout 103. On both sides, in the region of the opening 103 on the first-opening safety device 101, outwardly projecting holding teeth 102 are provided, which serve as restraint means and secure the first-opening safety device 101 in the mounted state on a correction roller. The holding teeth 102 engage in corresponding recesses of the correction roller and prevent a separation of the mounted first-opening safety device 101 from the correction roller, for example when using a sample. For the first time use of the correction roller, the first opening safety device 101 is removed. For this purpose, the engaging surface 107 and a reference element 108 are provided. The gripping surface 107 provides the user with an opportunity to attack to separate the first opening fuse 101 from the correction roller. The reference element 108 is provided at the end region of the Angrifffläche 107 and designed arrow-shaped. Thus, the user can be signaled the pulling direction with which the first opening safety device 101 can be removed for separation from the correction roller for the first use of the same. When a tensile force acts on the contact surface 107 in the direction of the arrow indicated by the reference element 108, the first opening safety device 101 is deployed along the bending edges 104, 105. The voltage applied to the paragraph of Korrekturrollers stop surface 106 is pulled out of the opening of the correction roller. From a certain size of the force that exceeds the maximum possible power transmission of the retaining means, so the holding teeth 102 so that the same are elastically bent, torn off or deformed, so that the Erstöffnungssicherung 101 can be completely removed from the correction roller.

FIG. 4 shows a top view of the underside of the application device 203 of a correction roller on which an opening-opening safety 101 according to the invention is mounted. In the present exemplary embodiment, the carrier tape provided with correction film 206 extends between the application device 203 and the first opening fuse 101. In order not to damage the correction film 206 or to provide a large adhesion surface, the first opening fuse 101 has the cutout 103. In addition, the cutout 103 offers a further advantage in the assembly of the first opening safety device 101 on a correction roller. The assembly takes place by inserting the area of the opening-opening safety device 101 equipped with the projecting holding teeth 102 into the free space between the two band-guiding cheeks 207 of the application device 203 in the direction of the correction roller. When inserting the outer edges of the opening assurance 101 are pressed in the region of the cutout 103 due to the protruding holding teeth 102 elastically against each other. After the retaining teeth have passed the band guide cheeks 207 during the insertion of the first opening safety device 101, the outer edges of the first opening safety device 101 in the region of the cutout 103 are removed again into their original state. In order to ensure the elasticity of the outer edges of the cutout 103 is formed substantially oval. The holding teeth 102 are in the mounted state on a support area 210 of the applicator 203 and ensure attachment of the first opening 101 on the application device 203 or on the correction roller. The application bar 204 is protected in the region of the correction film 206 by means of the first bending edge 104 of the first opening safety device 101. The retaining teeth 102 act as retention means and can transmit a minimum retention force F _R of at least 2 Newton to prevent inadvertent separation of the Opening opening assurance of the applicator 203 and the correction roller during a sample use by the user, in which tensile forces are exerted on the Erstöffnungssicherung 101 to avoid. The maximum retention force is a maximum of 20 Newton to ensure manual removal by the user by manual application of a force F _{z of} the first opening preventer 101. Only when the force F _z exerted by the user is greater than the maximum restraint force of a maximum of 20 Newton, the holding teeth 102 yield and the first opening safety device 101 can be separated from the application device 203 or the correction roller.

Of course, other embodiments of the retaining means are conceivable. For example, the holding teeth 102 can engage in recesses provided for the application device 203 in the region of the band guide cheeks 207 or on the outer contour of the application device 203. The use of an adhesive or clamping connection between the first opening safeguard 101 and the applicator 203 or correction roller is also conceivable. Another possibility is the molding or injection molding of the first opening securing device 101 to the application device 203 or the correction roller.

FIG. 5 shows a perspective view of a correction roller 201 during the removal process of the first opening safety device 101 for the first use of the correction roller 201 for transferring the correction film to the substrate. For this purpose, the user 401 exerts the tensile force F _z by engaging the engagement surface 107 on the first opening safety device 101 in the direction of the pointer element 108 designed in the manner of an arrow. As described, the first opening safeguard 101 unfolds along the bending edges 104, 105. The holding teeth 102 have a maximum retention force F _R of 20 Newton. That is, when a force F _{z is applied} by the user 401, which is greater than 20 Newton, the restraining means, ie the holding teeth 102 yield and the first opening safety device 101 can be separated from the correction roller. In an action of the force F _z in a direction other than the preferred direction or at an angle with respect to the applicator 203 and 101 Erstöffnungssicherung with the holding teeth 102 corresponds to the maximum applied force of 20 Newtons to overcome the maximum retention force F _{R of} the force vector of the Opening force 101 acting total force, which is directed according to the restraining force F _R but oppositely oriented. After the separation of the first opening safety device 101 from the correction roller 101, the user 401 can use the correction roller as intended and transfer the correction film from the carrier belt 205 via the released application strip 204 to the substrate. The retaining teeth 102 are preferably deformed during the separation of the first opening safety device 101 and the correction roller 201 or are destroyed. In this way, it is ensured that a new firm assembly of both components after a successful separation is impossible and the first opening fuse 101 can be provided as a one-way fuse.

FIG. 6 shows a sales display 501 with a plurality of correction rollers 201 with mounted first-opening security devices 101. Such a sales display 501 is, for example, for use intended for wholesale or retail. By equipping the correction roller 201 with Erstöffbefverschlüsse 101 can be dispensed with expensive outer packaging such as cartons or blisters. In the case of the sales display 501 shown, a potential customer has a direct view of the goods offered and knows which product he is buying. Even the bandwidth of the correction tape is recognizable at the application device and is not obscured, so that the customer can be sure after a purchase decision to have purchased the correct correction roller 201. In addition, a potential buyer at first sight recognizes the new and unused state of the correction roller 201 by virtue of the presence of the first opening safeguard 101.

Claims

claims

1. Erstöffnungssicherung (101) for mounting to adhesive or Korrekturrollern (201) for applying an adhesive or correction film (206) on a substrate (301) via an applicator (203), characterized in that the Erstöffnungssicherung (101) in mounted state extends at least partially over the applicator (203) and at least partially between the adhesive or correction film (206) and the substrate (301) to order the adhesive or correction film (206) on the applicator (203) prevent the substrate (301) and that the first opening fuse (101) is removable from the adhesive or correction roller (201) for the first time use of the adhesive or correction roller (101) to apply the adhesive or correction film (206) via the applicator (203) to enable the substrate (301).

Second tamper protection (101) according to claim 1, characterized in that retaining means (102) are provided to ensure attachment of the first opening fuse (101) on the adhesive or Korrekturroller (201).

3. Erstöffnungssicherung (101) according to claim 2, characterized in that the retaining means (102) has a minimum retention force (F _R ) of 2 Newton for attachment to the adhesive or Korrekturroller (201).

4. Erstöffnungssicherung (101) according to any one of claims 2 or 3, characterized in that the retaining means (102) has a maximum retention force (F _R ) of 20 Newtons for attachment to the adhesive or Korrekturroller (201) to a manual removal of the Opening protection (101) by the user (401) to allow.

5. Erstöffnungssicherung (101) according to any one of the preceding claims, characterized in that it is a disposable safety.

6. First-opening safety device (101) according to one of the preceding claims, characterized in that the first-opening safety device (101) is mounted on the application device (203).

7. First-opening fuse (101) according to any one of the preceding claims, characterized in that a Angrifffläche (107) for dismantling the Erstöffnungssicherung (101) is provided to ensure a transfer of the film (206) to the substrate (301).

8. first-opening fuse (101) according to any one of the preceding claims, characterized in that the Angrifffläche (107) has a reference element (108) to the user (401) to convey the application direction for the removal of the Erstöffnungssicherung (101).

9. Use of at least one correction or adhesive roller (201) with a first opening safety device (101) according to one of the preceding claims 1-8 in a sales display (501).